Yes, it's Sublime's version from git.
Cura does slice the mesh without generating the extraneous toolpaths, but it does log errors with the mesh. So I think it's just a matter of Kisslicer not handling the mesh errors in a nice fashion. Here is the Cura log:
File C:\Tantillus\Extruder\Extruder.stl is being chain exported.
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (104.638667, 86.120333, 11.050000) (104.481158, 86.132789, 11.050000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (104.629207, 86.121887, 11.150000) (104.511131, 86.130756, 11.150000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (104.814729, 86.107566, 11.250000) (104.524474, 86.130171, 11.250000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (104.798487, 86.108958, 11.350000) (104.550756, 86.128252, 11.350000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (104.782246, 86.110350, 11.450000) (104.591596, 86.125198, 11.450000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (104.766005, 86.111742, 11.550000) (104.632435, 86.122145, 11.550000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (104.749764, 86.113134, 11.650000) (104.673275, 86.119091, 11.650000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (104.708532, 86.116318, 11.750000) (104.691351, 86.116373, 11.750000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (104.443202, 86.136600, 11.850000) (104.266614, 86.150802, 11.850000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (112.278365, 121.462111, 91.350000) (112.294738, 121.476792, 91.350000)
Model error(intersect): (112.294738, 121.476792, 91.350000) (112.293762, 121.477402, 91.350000)
Model error(intersect): (112.294698, 121.478134, 91.350000) (112.293916, 121.477351, 91.350000)
Model error(intersect): (112.293604, 121.476604, 91.350000) (112.294185, 121.477185, 91.350000)
Model error(intersect): (112.294185, 121.477185, 91.350000) (112.294670, 121.477670, 91.350000)
Model error(intersect): (112.294670, 121.477670, 91.350000) (112.294289, 121.477289, 91.350000)
Model error(intersect): (112.293850, 121.476850, 91.350000) (112.293718, 121.476719, 91.350000)
Model error(intersect): (112.294004, 121.477004, 91.350000) (112.294004, 121.477005, 91.350000)
Model error(intersect): (112.294004, 121.477005, 91.350000) (112.294322, 121.477005, 91.350000)
Model error(intersect): (112.294322, 121.477005, 91.350000) (112.668109, 121.476002, 91.350000)
Model error(intersect): (112.294428, 121.477897, 91.350000) (112.294428, 121.476366, 91.350000)
Model error(intersect): (112.294465, 121.477464, 91.350000) (112.294383, 121.477384, 91.350000)
Model error(intersect): (112.294347, 121.477348, 91.350000) (112.294398, 121.477688, 91.350000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (110.882405, 79.857196, 92.750000) (111.114842, 79.857381, 92.750000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (110.286343, 119.583592, 93.050000) (110.283515, 119.581372, 93.050000)
Model error(intersect): (110.283515, 119.581372, 93.050000) (110.284160, 119.581084, 93.050000)
Model error(intersect): (110.282488, 119.579569, 93.050000) (110.282488, 119.580928, 93.050000)
Warning, the triangle mesh slice intersects itself in getLoopsFromCorrectMesh in triangle_mesh.
Model error(intersect): (110.063845, 119.372926, 93.150000) (110.066004, 119.375005, 93.150000)
Carve procedure took 7 seconds.
Preface procedure took 3 seconds.
Inset procedure took 36 seconds.
Fill procedure took 1 minute 58 seconds.
Speed procedure took 3 seconds.
Raft procedure took 9 seconds.
Skirt procedure took 4 seconds.
Joris procedure took 5 seconds.
Comb procedure took 6 seconds.
Cool procedure took 8 seconds.
Dimension procedure took 5 seconds.
Alteration procedure took 10 seconds.
The exported file is saved as C:\Tantillus\Extruder\Extruder_export.gcode
It took 3 minutes 46 seconds to export the file.